Assume That Latané and Darley Want to Demonstrate the External

Multiple Choice

Assume that Latané and Darley want to demonstrate the external validity of their 1968 experiment on bystander intervention.To do this,they conduct a study in which participants solve crossword puzzles alone,or in large or small groups.While the participants are working on the puzzles,they overhear a woman fall from a ladder and cry out,"Oh,my leg! I can't move it!" The researchers then observe and record the number of participants who attempt to help.The study described here represents a(n) ________ of the original "seizure" study.

A) needless duplication
B) encore
C) psychological copy
D) internal validity check
E) replication